It is believed a man forced a woman into a car at gunpoint in the Wilsonton suburb of Toowoomba shortly after 9am.

Police have so far been unable to confirm whether a young child was also held at gunpoint with the woman.

The man let woman out of the car on the side of the Gore Highway, south of Toowoomba, Inspector Mike Curtin of the Darling Downs police district said.

"Our latest information is that the lady is safe," Inspector Curtin said.

"We believe the parties are known to each other."

It is understood police are speaking with the woman to determine what happened.

Inspector Curtin said the sequence of events was unclear, although initial reports suggested a woman and child had been held at gunpoint.

"Initial reports indicated there may have been a small child with the female person," he said.

"But we're unable to say what has occurred, because we are yet to speak all parties involved.

"Our investigations are continuing to gain a full appreciation of the circumstances relating to the incident."

Police are searching for the man who is now believed to be travelling in the Southern Downs area.

Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or crimestoppers.com.au.